I purchased a Diamondbacks equipment bag on eBay from former MLB pitcher Bob Wolcott some years ago - I seem to recall that another board member got his Seattle one - and in the course of emailing back and forth I asked him whether he'd mind if I sent a few cards for him to autograph. He said sure, so I sent him, I think, four or five cards, and they came back nicely signed, with two others that I didn't have and which he just made me a present of. You can't get too much more accomodating than that!